Examples
Examples
Try the starting example
- Measured AC energy (kWh)
- 8000
- Array DC nameplate (kW)
- 10
- Plane-of-array irradiation over period (kWh/m²)
- 1000
- STC reference irradiance (kW/m²)
- 1
- Performance ratio (%)
- 80
- Final yield (kWh/kW)
- 800
- Reference yield (hours)
- 1000
Try another scenario
- Measured AC energy (kWh)
- 8001
- Array DC nameplate (kW)
- 10
- Plane-of-array irradiation over period (kWh/m²)
- 1000
- STC reference irradiance (kW/m²)
- 1
- Performance ratio (%)
- 80.01
- Final yield (kWh/kW)
- 800.1
- Reference yield (hours)
- 1000
Calculation method
Calculation method
Performance ratio (%)
PR=(AC energy/DC nameplate)/(POA irradiation/STC irradiance); boundary explicitly uses AC energy and DC rating.
Final yield (kWh/kW)
PR=(AC energy/DC nameplate)/(POA irradiation/STC irradiance); boundary explicitly uses AC energy and DC rating.
Reference yield (hours)
PR=(AC energy/DC nameplate)/(POA irradiation/STC irradiance); boundary explicitly uses AC energy and DC rating.
Symbols and units
- a
- Measured AC energy (kWh)
- b
- Array DC nameplate (kW)
- c
- Plane-of-array irradiation over period (kWh/m²)
- d
- STC reference irradiance (kW/m²)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; PR=(AC energy/DC nameplate)/(POA irradiation/STC irradiance); boundary explicitly uses AC energy and DC rating. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.